A U.S. Air Force veteran will speak about his experience working with Atlas missiles from noon to 1:30 p.m. Saturday at the Greeley Museum, 714 8th St.

As an airman first class, Jim Widlar worked on Atlas D missiles from 1961 to 1964 at Francis E. Warren Air Force Base in Wyoming,

Admission is free, but space is limited and registration is required. To register, go to tinyurl.com/5ybrk7tt.

His experience with intercontinental ballistic missiles years ago helped create the foundation for the Greeley Museum’s current “13-Minute Warning: Weld County in the Atomic Age” exhibit.

The Atlas D missiles, the U.S. Air Force’s first operational intercontinental ballistic missiles, were 75 feet tall with a range of 5,500 miles, carrying warheads of 1.44 megatons. The missiles were operational from

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